1.43(计算f的n次重复应用)

递归写法:

(define (repeated f n) (if (= n 1) f (compose f (repeated f (- n 1)))))

迭代写法:

(define (repeateds f n) (define (iter i repeated-f) (if (= i 1) repeated-f (iter (- i 1) (compose f repeated-f)))) (iter n f))

 

转载于:https://www.cnblogs.com/R4mble/p/8395483.html

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